How to get the PropertyInfo of a specific property?

Question

I want to get the PropertyInfo for a specific property. I could use:

foreach(PropertyInfo p in typeof(MyObject).GetProperties()) {     if ( p.Name == "MyProperty") { return p } } 

But there must be a way to do something similar to

typeof(MyProperty) as PropertyInfo 

Is there? Or am I stuck doing a type-unsafe string comparison?

Cheers.

Answer 1

There is a .NET 3.5 way with lambdas/Expression that doesn't use strings...

using System; using System.Linq.Expressions; using System.Reflection;  class Foo {     public string Bar { get; set; } } static class Program {     static void Main()     {         PropertyInfo prop = PropertyHelper<Foo>.GetProperty(x => x.Bar);     } } public static class PropertyHelper<T> {     public static PropertyInfo GetProperty<TValue>(         Expression<Func<T, TValue>> selector)     {         Expression body = selector;         if (body is LambdaExpression)         {             body = ((LambdaExpression)body).Body;         }         switch (body.NodeType)         {             case ExpressionType.MemberAccess:                 return (PropertyInfo)((MemberExpression)body).Member;             default:                 throw new InvalidOperationException();         }     } }